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通过对不同版本的教材进行研究,设计了一套简单、新颖、多功能的液体压强演示仪,取材方便,制作简单,效果明显,更适合农村老师教学使用.
Through the study of different versions of textbooks, a set of simple, novel and multifunctional liquid pressure demonstrator has been designed. It is easy to draw materials, simple to produce and obvious in effect. It is more suitable for rural teachers teaching.